We have a proper 'overflow' check which tells us that we need to split up existing cont buffer in separate records:
if (cont.len + len > sizeof(cont.buf)) cont_flush(); At the same time we also have one extra flush: "if cont buffer is 80% full then split it up" in cont_add(): if (cont.len > (sizeof(cont.buf) * 80) / 100) cont_flush(); This looks to be redundant, since the existing "overflow" check should work just fine, so remove this 80% check and wait for either a normal cont termination \n, for preliminary flush due to possible buffer overflow or for preliminary flush due to cont race. Signed-off-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com> --- kernel/printk/printk.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index aea37b7927dd..1856db8128c6 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1822,9 +1822,6 @@ static bool cont_add(int facility, int level, enum log_flags flags, const char * cont_flush(); } - if (cont.len > (sizeof(cont.buf) * 80) / 100) - cont_flush(); - return true; } -- 2.19.0